Home / 499,688,730,117.41-689,570,447,561.94-285,832,620,189.40

Finding the Fourth Proportional to 499,688,730,117.41, 689,570,447,561.94 and 285,832,620,189.40

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Solution

The fourth proportional to 499,688,730,117.41, 689,570,447,561.94 and 285,832,620,189.40 is: 394,449,015,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,688,730,117.41 : 689,570,447,561.94 = 285,832,620,189.40 : x
  2. Step 2: Convert to fraction form
    499,688,730,117.41/689,570,447,561.94 = 285,832,620,189.40/x
  3. Step 3: Cross multiply
    499,688,730,117.41x = 689,570,447,561.94 × 285,832,620,189.40
  4. Step 4: Simplify right side
    499,688,730,117.41x = 197,101,727,831,806,563,057,664
  5. Step 5: Solve for x
    x = 197,101,727,831,806,563,057,664/499,688,730,117.41
  6. Step 6: Final answer
    x = 394,449,015,861.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.